Perforated record card



Dec. 26, 1950 J. T. FERRY 2,535,125

PERFORATED RECORD CARD Filed Nov, 9. 1 945 6 Sheets-Sheet l.

ATTORNEY J.T.FERRY PERFORATED RECORD CARD Dec. 26, 1950 6 SheiS-Shet 2Filed Nov. 9, 1945 +++++++T+++L+++++T++T+++ .T .T L. -T T 1 .T .T .T L.L..+ +++++++T+++i+++++++T+++ T+T++++++++++++++++++++ L. L. .T L. L. LLLa T L. L. L.

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ATTORNEY Dec. 26, 1950 -J. rA FERRY PERFORATED RECORD am 6 Sheets-Sheet5 Filed Nov. 9. 1945 FIG. 7

' FIG. AIO JOHISVTNJRY gv )L L ATTORNEY Dec.- 26, 1950 J. T. FERRYPERFORATED RECORD CARD mld Nov. 9, 1945 6 Sheets-Sheet 4 INVENTOR JOHN TFERRY N. .DE

ATTORNEY Dec. ,26, 1950 J. T. FERRY PERFORATED RECORD CARD 6Sheets-Sheet v5 v Filed Nov. 9', 1945 V o z INVENTR. JOHN T. FERRYATTORNEY Dec. 26, 1950 Filed Nov. 9, 1945 J. T. FERRY PERFORATED RECORDCARD S ag H l! i! i! H il meow@e o g G o 0 0 0 o 0 G o 0 o O o0 0 a o 0e 0 o 0 o 6 o 0 o G@ 0 o Q 0 6 0 o@ "e sheets-sheet 5 FIG.I4

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' JOHN T. FERRY ATTORNEY Patented Dec. 26, 1950 PERFORATED RECORD CARDJohn T. Ferry, Brooklyn, N. Y., assigner to Remington Rand Inc.,Buffalo, N. Y., a corporation of Delaware Application November 9, 1945,Serial No. 627,610

(Cl. 23S-61.12)

i claims. 1

This invention relates to perforated cards and to a mechanism forsensing the periorations in the cards as used particularly in cardcontrolled business machines,

At the present time, cards employed in the control of business machinesare distinguished by perforations of circular or rectangular shapearranged in horizontal rows of data index positions forming verticalcolumns. In the standard round hole card, each horizontal row presentsindex positions for forty-five holes, while a card perforated withrectangular holes or slots presents index positions for eighty holes ineach row. The index positions in each horizontal row form verticalcolumns of twelve positions per co-lumn. The slots, in the direction oftheir length .are aligned in vertical columns, and in the direction oftheir width are aligned -in horizontal rows. The diference between thewidth of the slot and the diameter of the round hole accounts for thegreater capacity of a slotted card in horizontal row direction. It alsomakes the spacings of the round holes and slotted holes in a rowrelatively different, so that the different types of cards requiredifferently spaced sensing mechanisms for the interpretation of the datapunched therein.

Millions of round hole cards and millions of slot-shaped hole cards arein commercial use, and each type controls different mechanism to do thesame work. A user of slotted cards is confined to the use of aparticular mechanism, and the same holds true for the user of round holecards. The cards cannot be in'ierchangeably used in one type ofmechanism, and, hence, a commercial establishment that wishes to changefrom one type f of machine to another must. either scrap or reproduceall of its original style cards, and substitute newly punched cardshaving perforations that will conform to the sensing mechanism of thenewly adopted machines.

The use of a round hole is preferred, because the openings do notprovide corners which are present in the slotted card and are moreeasily torn if the card is accidentally bent in handing, or in thenormal course of sensing use. However, the diameter of the round holethat can be used is limit-ed by the operating conditions of themechanism. For instance, the use of a round hole of a diameter equal tothe Width of the slotted hole might be contemplated, but the edge of thehole would be the same distance from the sensing pin in columnwisedireciion, and any irregularity of the card or contraction or 'expansiontherein, due to atmospheric conditions, in the direction in which thecard is fed to, and arrested by, a stop in the sensing chamber, mightnot be allowed for in the restricted size of the holes with respect tothe sensing pins. It is essential that the hole be made as large aspossible, but a diameter larger than the width of the slot is notfeasible because of overlap of the holes. It is not possible to placeround holes at each slot position in horizontal alignment because ofthis overlap. As the sensing pins must be arranged to register with theslots oi the card, the round holes of a card must be so arranged thatthey may also be sensed by the same sensing pins that register with theslots.

It is one of the important objects of the invention, therefore, to notonly arrange round holes in'a card in such relation to the perforationsof a slotted card that either type of card can be sensed by the samesensing mechanism of a business machine, and to provide for anarrangement of round holes that will permit the use oi a round hole ofmaximum diameter, but to also provide a sensing mechanism that can beincorporated in diierent business machines for sensing the perforationsof either the round or slotted hoie card.

It is another object of the invention to arrange the centers of theround holes with respect to the horizontal axes of rows of slots, sothat the round holes may be punched in a card in horizontal rows thatwill accurately register with the relatively same horizontal rows ofslots in a card having rectangular perforations; and to provide for thecenters of the round holes with respect to the horizontal axes of rowsof slots, so that the round hoies may he punched in a card in horizontalrows that will accurately register with the relatively same horizontalrows of slots in a card having rectangular perforations; and to providefor the centers of the round holes of each horizontal row beingsequentially offset or disposed a predetermined distance at oppositesides of a line that would constitute the horizontal axes of a row ofslots, said distance being such that the major area of each hole lieswithin the boundaries of a si t area.

t is another object of the invention to provide a sensing mechanism thatcan be incorporated in machines for doing different work by derivinginformation from sets of cards of the round or slotted hole type thatcan be fed to the machine in interchangeable groups. As a simple exampleit mightl be desired to tabulate from each card of the diderent groupsan interpretation of the data represented by the periorations. A machineof the type shown in Patent 2,044,119, granted to 3 W. W. Lasker, June16, 1936, may be employed, having the sensing mechanism shown herein,for tabulating the data perforated in round hole or slotted hole cardswithout the necessity for adjusting the mechanism to either type ofcard, specifically. The sensing mechanism may be incorporated in aninterpreter of the type disclosed in Patent 2,311,471, granted to-R. W.Ritzert, llebruary 16, 1943, and the perforated data ofthe differenttypes of punched cards can be sensed, interpreted and printed thereon.In order to` obtain increased capacity of the novel round hole carddisclosed herein, may use the horizontal spaces between rows of indexpositions making-up a complete card of one hundred and sixty columns toobtain another complete card of a like number of columns, so that thecapacity of the card is three hundred and twenty columns. To handle thiscard in the machine an adjustment is provided that blocks the fecd of acard while the 'onelin the sensing' chamber is advanced to a newA'sensing position against an adjustable stop wniember.

'rInfthe-'patent to Goerlitz, 2,054,811, alternate horizontal hows ofaligned circular holes are offetlrelatively:.to/eachother for/'thepurpose of "increasing capacity of the card, while appli- ;cantroiisetsthe sequential holes of each row to arry out the' ohjects of hisinvention. A slotted type .carof isshown in the patent to Lake,

4vlgflSiZ, out neither type of card illustrated in nflthese patents canbe sensed by the same mechanism, becausek the holes of each individualrow not the Goerlitzipatent, heingaligned horizontally,

' Ould not be punched closely enough together without overlap, toregister with the slots of the 'ardfsh'own inthe Lake patent.Variousrpatents have been issued with particu- "=.lar `holearrangements, primarily for the pur- .pose of increasing the perforateddata capacity fofz'the" card, among'whieh, a patent to Mills,

-'1,928,209,-shows slots and round holes `arranged y."hetween horizontalused data positions, but only `rione* intermediateslot or round hole canbe in any one column. The use, for instance, of a axithree hole code isprecluded because the punchpingsiiinany one column might include anintermediate-slot and overlap of the slots would occur.

. `Also-1=atent'1,623,164 to Carroll shows the use rof staggered holesin rows for the purpose of inf creasing thecapacity ofv the card.. `Theholes of the card in this patent being equally spaced r columnwise,would not register with the slots in x ,any'horizontal row of a slottedtype card; and in a patentto Artana, 2,251,728, the intermediate i Thisart has been referred to because the staggering of" holes heretofore hasbeen done pri- -pmarily for the purpose of increasing the capacity ofthecard and the present invention While it staggers the holes, does sowithin certain limits ."Jthat makes possible the employment of thesingle sensing mechanismV disclosed herein that can 'Ssense eithertheslotted or round hole data in different cards.

Other objects and features of the invention will appear fromthefollowing description when read in connection with the accompanyingdrawings, in which data perforated therein and having data-index Fig. 1is a plan view of a card `showing code Cil in use;

c Fig. 4 is Ian exploded isometric view showing diagrammatically, therelation of sensing pins to theiopeningsrof a slotted card and the roundholes of a `registering card perforated in accordance with the presentinvention;

Fig. 5 is a plan view of an enlarged portion of a card punched withoffset holes in each row and showing thereon, in outline, the differencein the novel arrangement of perforations with V:respect toethehole'areas'of cards inpresent'use;

`1T-ig. 5 is ai'plan view of a card showing the use of additionalrows ofindex positions providing a card having three hundred and twenty columnsof indes: .data,'and containing the combined s data-perforations .of thecards shown in Figs. 1

and 2;

Fig. 7 is a view similar to 5'showing the arrangement of the holes inathree hundred and tr-:l-entyy column card, with respect tothe sensingthe` card being in rirstsensing position;

Fig. 8 is a View similar to Fig; 7 illustrating the relation ofthesensing pins to the alternate rows of holesv when -the card is movedftoa second 'sensing position;

Fig. 9 is a View of a fragment of a: of the type shown Fig.G.showingwo'ne form of data index position markings;

Fig. -10 is a view of a fragment of a-card showing `the relation oftha-holes: -as vaffecting fthe f :rigidity and'strength of theV card;

the-right side Tof a tahulator.- illustrating `Fig. 11 is a fragmentaryYportionof acard with the Y holes shown 'evenlyI spaced and indiagrammatic relation. with slots-.of aregistering'card of slotted type;

sectional elevation itaken at he 12 is a view'in Fig. lfiis a plan viewtaken onthe lineili-l4 of Fig. v13 showing the arrangement of the rows.of sensing pins; and

Figs. 15 andvlo are fragmentary views in sec-- tion showingfthe cardposition adjusting-opera-j tion of the stop.

f This kapplication is a continuation in part of led July 4.-, 1944,inthe .name of lJohn T. Ferry for Perforated Record Card.

l-of data indexpositions arranged .invertical columns in which,atpresentyas shown-inthe fragmentary view of Fig. 3, holes-1representing a singie-letter or a Vsingle numeral arerpunched for the-control of abusiness machine of thev type known as Powers In thismachine;` sensingpins are aligned in horizontal rows toregisterwithftl'ie index positions of the card;sothat control 'of ,the

machine is afordedbyi'thexround holes inv .the card. As showndiagrammatic'ally in 3, a vcard having slottedk holes Il wouldnotfcontrol this machine; because ,theslotareas are; too l.closetogether in horizontal alignment to register with the sensing pins l2which are spaced to sense the round holes i3. In the diagrammaticcomparison of the slot areas and the round holes in Fig. 3, horizontallyaligned round holes or" necesary diameter cannot be punched for eachslotted hole area because of overlap and, as shown in Figs. 4 and 5, thecard is arranged with round holes I4 of a minimum diameter that can besensed by the sensing pins EEA. The pins of the sensing mechanism may beround (i5) or rectangular (ISA) in cross sectional shape and arearranged in sequentially staggered arrangement in horizontally extendingrows, so that consecutive pins may sense in the opposite ends of theslot areas II. The arrangement of the pins and their operating mechanismare shown in Figs. 13 and 14, but in Fig. 4, the pins are showndiagrammatically to bring out the relationship between said pins, theslot areas, and the novel arrangement of round holes set forth herein.

`It is deemed advantageous to bring out the structure of the card firstin order that the sensing mechanism that is employed to handle it can beexplained with reference to the different types of cards sensed.

For convenience of illustration only, an imaginary center line I 9 isshown in many of the ligures which constitutes a median line or axispassing horizontally through the slot areas I I, e

the lattel` being also shown diagrammatically. A novel arrangement ofcircular hole positions in each row is provided with relation to saidmedian line I9 by offsetting the centers of the circular holes i4alternately at opposite sides of .s

this median line or horizontal axis, so that the sequential holes ofeach horizontal row are 01T- set and the major area of each round holefalls within the slot area I I. The centers of the holes constitute thedata index positions in each horizontal row. If a slotted card S isplaced beneath, and in register with, as in Figs. 4, 5, '7 and 8, a cardhaving round holes I4, it will be found that the sequential round holesin any horizontal row coincide with the upper and lower portions of theslots, respectively, and that the holes of both cards will register withthe sensing pins I5 or 55A. While both cards would not be sensedsimultaneously, it is evident that the holes in either could be sensedby the same sensing pins.

Consequently, the factor that determines the location of the round holesI4 in each horizon- .tal row is the relation of their centers to theimaginary horizontal median line I9 of each row that passes through theslot areas Il and constitutes the minor axis of the slotted holes ineach row. Cards, so punched with round holes, can be sensed in themachine in which sensing pins are arranged to sense the slotted card.The relation of the position of the round holes to the median line I 9of each row of slots is brought out in a comparison of Figs 5 and 11. InFig. 5, it will be evident that the lower holes of the upper row arecloser to the upper holes of said upper row than they are to the upperholes of vthe next lower row, leaving clear zones I I between thehorizontal rows of holes I4. In Fig. 11, if the lower holes I 6 of theupper row are positioned midway between the upper holes of the upper andlower rows, as is the common practice in the staggering of holes orrows, for the sole purpose of increasing the capacity of the card, asshown in the patents referred to herein, they would not register withthe slot areas II and, consequently, could not be sensed by the samesensing mechanism that would sense the slots. It is important that thecenters of the round holes I l be arranged within a predetermineddistance of, and at, opposite sides of the median line I9, sequentially,so that the major area or portion of each hole I4 falls within theconfines of a slot area.

In a standard slotted hole card, the slots II are vertically spacedabout a distance equal to the length of the slot, leaving a space I8between columnwise adjacent slots as shown in Figs. 4 and 11 that is toosmall to permit the punching of an intermediate slot. The slotted cardis limited to a single group of slots arranged in twelve horizontal rowsproviding eighty columns of twelve positions per column, and a roundhole card IE! that can be sensed by the same mechanism has a, likearrangement of holes. However, with the offset arrangement of the roundholes in each horizontal row as described, the zones I'I providesufficient space on the card between the rows of holes is identifiedwith the median lines i9, as seen in Figs. 1, 2, and 4, to permit theuse of another complete set of round holes as shown in Figs 6, 7, 8, and10, thus doubling the capacity of the card. The extra or second set ofholes is also arranged in horizontal rows, the holes of each row beinglocated alternately at opposite sides of a median line 29 disposedintermediate the median lines IQ of the holes of the rst set. The secondset of holes is so arranged that, when the card is moved columnwise to asecond stop position 22 (Figs. '7, 8, 15 and 16), it is sensed by thesame sensing pins I5 that sense the rst set of round holes in the sameor similarly perforated cards, or that sense the holes of the slottedcard when the cards are positioned at an initial stop position 2| foriirst sensing. Thus, with a three position code employing only sixvertical positions in a column, the single group of card as illustratedin Figs. 1 and 2 gives an upper zone U and a lower zone L of eightycolumns each, or a one hundred and sixty column capacity card. With theadded rows of holes identified with the median line 20 providing anextra set or group of hole positions, each zone U and L accommodates onehundred and sixty columns and the entire card, as shown in Fig. 6, threehundred and twenty columns, or about three and one half times thecapacity of the standard ninety-column round hole card in present use,as illustrated in Patent 1,780,621.

While the data index positions are shown in various iigures of thedrawings as hole outlines or crosses, it is evident that numerals,letters, or other identifying indicia may be employed as in Fig. 9, thatwill generally assist in locating on the face of the card I9, the rowand column 1ocations of the data index positions.

The use of the same pins for sensing the diierent sets of holes,arranged in alternate, horizontally extending rows of staggered holes,identied with the median lines I9 and 20, reduces the number of pinsthat would be required in sensing the aligned holes of relativelystaggered rows of holes as in the Goerlitz patents referred to, it beingpointed out that the holes I4 of the present invention in each row arerelatively staggered, each row beginning the same distance from the leftedge of the card and extending horizontally aoross the card to end thesame distance from the right edge thereof. Applicant staggers thesequential holes of each row,

butdoesnotstagger therovvs relatively to each other.l f While therowsofholes have heretofore been-staggered for the purpose of increasingthe capacity of the card, the staggeringof holes of each. row., asin thepresent invention, is done fonthepurpose of producing4 a card, the.round holeSI;4 of which willequal. or exceed in number, the slots II ofthe slotted hole card. The round hole cardfcanbe sensed. by a sensing.pin arrangement shown in Figs. 13 and..14, that will also f sense. saidslotted hole. card. Reference. to Figliv Willshow thatina single columnof the card, holes for four differentcharacters can 'ne punched. Forpurposes of. explanation, in the rstyerticallefthand column, thecode.holes,25 (horizontal cross hatching): arefor the letter J, holes 23(45 cross hatching) for thenumeral 2, .holes 21` (45 cross-hatchingyforthe-letter B and holes 28 (vertical cross hatching) for the letter N.,In the. one hundred andsxty column card illustrated in Fig. 1, thelettenJ (holes 25,) and numeral 2 (holes 26) are punched in the firstcolumn and in .a second or similar card shown in Fig. 2.the letters B(holes 21) andN (holestii) arepunched in the rst column. The subjectmatter of thetwo one hundred and sixty column cards shown in Figs. 1 and2 can consequently be punched in the singlethree hundred and twentycolumn card shown in Fig. 6, thus effecting` a` considerable savinginthe number of cards, thev manual handling thereof',A and the amountofi-lling equipment necessary. Inyiew of the factv that the .card needonl'ybe moved from a first sensing location to a second', to Venable thesame sensing pins to control" themachine in tabulatngthedata from thecardsL thewear on the latter is reduced bythe lesser amountof Vvtravelnecessary lthrough ,the machine per quantity of data taken from eachcardlby' the' machine.

The staggering of the holes. I.4,of each. horizontal row in prearrangedrelation to the median linesv I'9 and 2El'thatpass horizontallythroughthe perforatons of a slotted card', produces a unique spacing ofthe holes that materially adds to the strength and rigidity of the card.As shown in Fig.; 10, theV oblique lines 32gdrawn through the centers ofsome of .thetholes of the' card .cross narrow and widek portion 34'and35,' respectively, of the card between the holes I4; and the: amount of,card stock in Isaid wide. and narrow portions varies along theobliquelines because these lines cannot be drawn through the centers of all theholes in oblique direction. The novel spacingD of the-holes preventsalignment thereof along, said oblique. line 32: A maximumamount of stockseparates. the holes .along the vertical and horizontal lines 3o and 3l,respectively,and because of. the unaligned arrangement of 4the holesobliquely and the difference in the amount of cardstock between holes,the card will notbend as readily along a straight linev in obliquedirection as Vwill a card having a like number of holes which areequally spaced and are valignedin all directions, whichI is the casewhen, staggered holes are arranged the same distance from each other.

TheA mechanismbywhich the cards are passed `througha machinel andsensed, consistsof card supply anddischargereceptacles 45 and 4IrespectiVely with `their associated feed rolls39 and 42 disposedatopposite sides of a card orsensing chamber. 44..inter1nediate,anupperpin box 56 and a lower pin box 4.3 vin .the latter of' whichy areyieldably mounted the. spring .pressedsensing pins I5..A The pins haveat.portions 45 from which. proj ect the lock. studs. ,4.6 for engagementwith the locking slides .41 to lock thesensinggpins.

that nd holes in the card immovable with respect to the pin box 43. Asthe latter rises under influence of the eccentric 48, driven by maindrive shaft 50, the locking slides 41 moving to the left in Fig. 13under influence of cam 49 will lock up the pins that have sensed holesin the card. Continued upward movement of the pin box 43 is transmittedto the set pins 52 which operate Bowden wires or other transfer mediums,53, to transmit the data indicated bythe perforations to suitable stopmeans, which in turn, control the operation of printing means as shownin Patent 2,044,119. The flat portions of the pins I5 are in alinement,but the pin extensions thereof are alternately ofsetto provide a sensingpin arrangement as illustratedin Fig. 14, which arrangement coincideswithv thev arrangement of the sensing pins inFig. 4 and. with either around or aslot-shaped hole locatedl at any data designation position.The description of the location ofthe dataindex positionsof the card isalso a description of thelocationfof the sensing pin and it is notdeemed necessary to repeat orshow the use of a median. line. inconnection with the pin arrangement as it has been disclosed in Fig.A 4.The factor -that .determinesithe location of the pins I5 in eachhorizontal row 55,-Fig. 14,v is the relation ofitheir centers totheimaginary horizontal median line. I9.of each row that passes through the.slot areas .II of a slot type card disposed in they sensing chamber 44atnormal sensing position or againststopl 2I; the line, I9 constitutingthe horizontal or minoriaxis ofthe slotte-d holes in each row of thecard. Whenthe three hundred, and twenty columnround hole card is ineither rst or second sensingV position due to anadjustablestoprnechanism to belater explained, alternate horizontal rows o holestherein will be in .register with the sensing pins (Figs. 15 and 1.6)andthe intermediate` rowsof holeswillregister withthe clear spaces 54`between each row 55 of sensing. pins I5.

Thel spring pressed vset pins 52 are held in the upper.stationarypinrbox, 5,6 and are provided with flat portions51 fromwhichproject the studs 56' and 5S for setj engagement respectivelywiththe' cam or designation slides 69. and latch plates Si. The sensingVpinsl and set `pins 52 are shown in Fig. 13. as they appear when thelcard chamber is empty, the sensing pin springsbeing Wealrerthan theAset pin springs as explained in Patent 2,044,119. At intervals, thepins 52 that have .been set .are releasedv by the. latch plates 6 Ivoperatedv by a suitable retract bail 62 mounted on a rock shaft 64 whichis actuated through the' arm 64a, link .64b and lever 64o by the re,`tract cam 5S ias shown diagrammatically in Fig. 13 'and' fully'illustrated in Fig. 18 of Patent No. 2,237,908.

When either a slotted type card or a round hole card is fed frommagazine 40by feed rolls 3S it is arrested in theA card chamber 44 by atwopositionY stopmechanismwhich includes a stop bar 22'spring urged toclosed position and carrying a s topblock 2I'thereonwhich arreststhecard at a rst sensing position. The stop oper,- ating means includes acard stop cam 68 (Fig. l2) on shaftejfor moving a cam ,arm` 69.0nce ineach cycle of machine Voperation to open` and close the stop 22 throughthemedium of the verticallinks 'I and .1I and Itherock arms 12 and 13.Link 'lo 'has a yieldabler pin, and slot connection 6,1 .to arm 12 and,link,1l presents a foot 1 4, for engagement witha stop detent 15which,when

beneath the foot 14, prevents full opening movement of the stop andpositions the stop bar 22 in the path of the card so that when thelatter is advanced by the skid rolls 16 it will bring the alternate rowsof the second group of round holes into register with the sensing pinsas clearly shown in Figs. '1, 8, 15, and 16. When a group of cards suchas illustrated in Fig. 1, upon which one set of data index positions isdepicted, is passing through the machine, the stop opens and closesfully once in each cycle of machine operation; this being also true fora slotted card group or an indiscriminate mixture of the two. The cardsare fed in to the card chamber, are sensed and pass to the dischargerolls for stacking in the discharge receptacle 4I. When cards having twogroups of round holes as illustrated in Fig. 6, are to be sensed it isnecessary to adjust the stop mechanism so that it will automaticallydetain each card for a cycle so that the holes of the rst group thereofwill register with the sensing pins and then in the next cycle ofmachine operation cause the stop to hold the card so that the holes ofthe second group thereof will register with the sensing pins. On thethird cycle of machine operation the card is released and goes to thebin 4|. Adjustment of the lstop automatically controls the feed of thecards by disabling the card picker 11 Which is normally operated by thepicker cam 18 to feed one card in each cycle. This disablement of thepicker is caused by withholding the picker operating linkage 19, 80, 8|,82 with a detent 83 whose operation is controlled by a cam actuated bellcrank 34. The detent 83 has a spring pressed pin and slot connection 86with an adjusting link 81. The picker and stop adjusting cam 88 mountedon stud shaft 89 is driven from the main shaft 50 through gears 98 and9! having a three to one ratio, respectively so that cam 88 revolvesonce for every three revolutions of main lshaft 58. A notched manualpush rod 92 extending to the exterior of the machine is used for holdingthe bell crank 84 out of reach of cam 88, when cards having one set ofholes are being put throughthe machine, and when the rod 92 is at theout position, as shown in outline in Fig. 12, it holds the link 81 inits leftward posi- Ation which keeps detent 83 disabled and permitsregular cyclic operation of the card feed mechanism under inuence of cam18. At this position of link 81 the stop detent 15, carrying anadjusting screw 93 in a turned end thereof, is thrown from beneath thefooted end 14 of vertical link 1| and the stop linkage can have a normalfull stop opening movement in each cycle. When cards having a double setof holes are to be fed to the machine, the pull rod 92 is lifted andsnaps in under influence of its spring 94 and drops the bell crank 84 tocam engaging position and moves the link 8l to the right (Fig. 12) withthe result that detent 83 is positioned 'to engage link 80. Cam 88 has alow dwell for ltwo thirds of its circumference and a high dwell for thebalance and during two cycles of machine operation, or two rotations ofmain drive shaft 59 the cam crank 84 will engage the low of cam 38 andas shown in Fig. 12 will position link 81 to the right to engage detent83 to prevent card feed and to throw stop arm 15 beneath link 1| tolimit the opening movement of the stop so that the block 2l will move upout of card detaining position and stop 22 will then be in position toarrest the card after the latter has been pushed to the rear of the cardchamber by the yskid reus is, a qietance necessary to bring the secondgroup of holes into register with the sensing pins. When the highportion of cam 88 rocks bell crank 84, the latch 83 is removed fromdetent position and the stop arm 15 is thrown out of the path of thelink 1I which descends the full travel to open the card stop completelyand let the card pass out of the chamber. Use of a yieldable pin andslot connection between link 1I and arm 13 allows closing movement ofthe stop linkage when the card is beneath block 2l and against stop bar22, without damage to the card.

In the operation of the mechanism, when sensing of either round orslotted hole cards is taking place, a card is picked up at about 30degrees of movement of shaft 5B and is fed into the sensing chamberagainst the stop 2l which opens at about degrees to release the previouscard and closes at about 200 degrees to hod the new card for sensing.The pins sense the new card at about 240 degrees and the data set up ofthe previous card is retracted at about 325 degrees, and in the nextcycle, the card stop releases the card. The card is held in the sensingchamber for one cycle when one group of holes is to be sensed, but isheld an additional cycle when the two different groups in the same cardare to be sensed. In the second cycle when the cam 68 allows the cardstop to open, its full opening movement is blocked by the member 15controlled from cam 88 and as the card is advanced from stop 2| to 22the two diiferent groups of ho`-es can be sensed without the necessityof making two separate runs of the cards through the machine. During thetwo sensing cycles the operation of the card feed and card stop openingmechanism is stayed and hence by a simple manual adjustment, the machinecan be conditioned to sense one hundred and sixty column round orslotted hole cards and three hundred and twenty column round hole cards.

It is evident, therefore, that the invention contemplates the sensing ofcards having either round or slotted holes by producing a card having anovel round hole arrangement and by also providing a sensing mechanismfor sensing either type of perforated card. The novel arrangements ofthe holes with respect to a horizontal location affording spaced rows ofstaggered holes, that have their major area .within what would be thearea of a slotted hole, if two such cards were brought into register,produces a card of greatly increased capacity. Further, a card isproduced that will resist bending in any direction by the arrangement ofthe holes thereof, so that the holes will be separated by a maximumamount of cardstock.

While I have described what I consider to be a highly desirableembodiment of my invention, changes in form may be made withoutdeparting from the spirit of the invention, and I, therefore, do notlimit myself to the exact form'herein shown and described, nor toanything less than the whole of my invention as hereinbefore set forth,and as hereinafter claimed.

What I claim as new, and desire to secure by Letters Patent, is:

l. A card for controlling the operation of a business machine adapted tobe governed by cards of either the round or slotted hole type, said cardpresenting horizontal rows of hole index positions, the positions ineach row being disposed sequentially at opposite sides of an imaginaryline constituting the horirontal axis of a ,row of slot positions in aregistering card of the slotted ltype, and said holepositionsvfallingwithin the slotA areas of. said slot positions.r

2; .A- card for controlling the operation of a .businessmachine adaptedto be governed by cardsl of either thel round' or slotted hole type,said card" vpresenting horizontalrows of hole vindex positions, thepositions in each row being disposed sequentially at opposite sides ofand equal distances `from an imaginary line Lconstituting the horizontalaxis of a row o'f sloty positions inanother card of the' vslotted typebrought into register therewith.

3. A card for controlling. theoperation of a businessV machine adaptedto be governed by cards of either the 'circular or slotted hole type,

said cardv presenting horizontal rows of data index positions deiiningcircular holeV centers, said' positions in each'row being disposedsequentially at opposite sides of an imaginary line constituting thehorizontal axis of a row of slot posi- .tions in a registering card ofthe slotted type and saidpositions falling withiny the' boundaries of:slots located by said slot'positions.

4. A card for controlling `the operation of a business machine adaptedtov be governed by cards having circular or slotted control holes, saidvcard presenting horizontal rows of data index positions defining roundhole locations, said positions in each row being disposed sequentiallyva predetermined distance at opposite sides .of an` imaginary lineconstituting the-horizontal axis of a row of slot positions in aregistering .card of the slotted type, wherebythe major area fa circularhole perforated in any of said positions willflie within the'area of aslotiin register therewith.

l5. A- card for controlling the operation of a business machine adapted:to be governedl by cards having circular or slotted control holes, saidcard' presenting horizontal rows of data index positions deiining roundholeA locations, said-positions in each rowv being disposed sequentiallypredetermined' distances at opposite sides iof animaginary lineconstituting the horizontal axis A`of a rowof slot positions in aregistering card ofthe slotted type, whereby the center of a circularhole perforated in any of said positionsis -withinthe area of a slot inregister therewith.

6. A card for controlling the operation of a ybusiness machine adaptedto be governed by cards. of` either the round or the slotted hole type,said card presenting horizontal rows of hole index positions, thepositions in each row being disposed sequentially at opposite sides ofan imaginary line constituting the horizontal axis of a row of slotpositions. inv a registering `card of the slotted4 type, and the.vertical spacing between the horizontal rows being greater than thevertical spacing between the hole position'sof each row to provide clearzonesr between said rows'. t

7'. A card forcontrolling the operation of a business machine adapted tobe governed by cards having round or slotted control holes, said cardpresentingv horizontal rows ofhole index positions, the positions ineach row being disposed sequentially at opposite sides of an imaginaryline constituting the horizontal axis ofv a row-'oi slot positions' in aregistering card of the slotted type Vand the'. Vertical spacing betweenthe horizontal rows being greater than the vertical spacing between thehole positions of each row and providing clear zones between said rowswhen the card is in one sensing position and another set of hole indexpositions located in each of said zones for increasing the capacity ofthe cards.

8. A card forl controlling the operation of a business machine adaptedto be governed' by cards' of `either the round or slotted hole type,ysaid card presenting horizontal rows of hole index positions,- thepositions in each row being disposed sequentially at opposite sides ofan imaginary line constituting the horizontal axis of a row of slotareas in a card of the slotted type brought into register therewith, andsaid index positions being unaligfned obliquely of the card wherebyholes perforated at said positions will vbe separated by varying amountsof card stock.

9. A card for controlling the operation of a business machine adapted tobe governed by cards of either the round or slotted hole type, said cardpresenting horizontal `rows of hole index positions, the positions ineach row being disposed sequentially at opposite sides of an imaginaryline constituting the horizontal axis of a row of slot areas in a cardof the slotted type brought into register therewith, and said indexrpositions being out of alignment in directions obliduely of the cardwhereby holes pervforated at said` positions are separated by altervnatewide and narrow amounts of card stock in said oblique direction forincreasing the resistance of the card to bending along said holes.

l0: A card for controlling the operation of a business machinel adaptedto be governed by cards having round or slotted holes, said cardpresenting `horizontal rows of hole index positions for initial sensing,the positions in each row being disposed sequentially at opposite sidesof an imaginary line constituting the horizontal axis of a row of slotpositions in a card of the slotted type brought into register therewith,the verticalA spacing between the horizontal rows being greater than thevertical spacing between the hole positions of each row and providingclear zones'betw'een saidA rows, and an additional row of hole indexpositions for secondary sensing located in each of said zones forincreasingthe capacity of 'the card.

JOHN T. FERRY.

REFERENCES CITED The following'references are of record inthe le of thispatent:

UNITED STATES PATENTS Number Name Date 1,769,022 Goerlitz July 1, 19301,984,516v Brougham Dec. 18, 1934 2,027,916 Lasker Jan. 14, 19362,054,811 Goerlitz Sept. 22, 1936 2,324,438 Thomas et al'. July 13, 1943

